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| Start / | Knowledge / | Safety Measures / |
| Accidentals | Designs | Errors | Fakes | Kinds | Mistakes | Parallel Issues | Printers Waste | Quality |
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Knowledge / Safety Measures / Press Marks / Printers Waste |
Press Mark Printers Waste: during the production of a press mark arising printers waste |
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Missing Press Mark: postage stamp with caused by printers waste not printed press mark |
Shifted Press Mark: postage stamp with caused by printers waste shifted press mark to another position as intended |
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Split Press Mark: postage stamp with caused by printers waste shifted press mark which is extended over multiple sheet positions |
Inverted Press Mark: postage stamp with caused by printers waste inverted instead upright press mark |
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Double Press Mark: postage stamp with caused by printers waste twice instead of once the same press mark |
Triple Press Mark: postage stamp with caused by printers waste triple instead of once the same press mark |
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Press Mark on Front: postage stamp with caused by printers waste press mark on front instead on revers |
Light Press Mark: postage stamp with caused by printers waste clear but too light press mark |
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Strong Press Mark: postage stamp with caused by printers waste clear but too strong press mark |
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